Here's an updated version of the last email list script (in ASP with Access DB) I gave. It captures name, email and state. Admin section let's you mail to specific states or everyone on list. To see it at work visit www.funkdoc.com/mail.asp.
for the script.
For some none freebies visit www.ewebjunkies.com.
If it's a whole site or just some updates like adding a guestbook, forums, etc...